Mercury 994 Grand Marquis Fuse Box Diagram Mercury 994 Grand Marquis Fuse Box Map Fuse Panel Layout Diagram Parts: tighten to 20-30 N-m, tighten to 45-65 N-m, tighten to 35-45 N-m, EGR valve to exhaust manifold tube, EGR valve, bolt, RH exhaust manifold EGR valve tube to manifold connector.